Power study of anova versus Kruskal-Wallis test

نویسنده

  • T. Van Hecke
چکیده

This paper describes the comparison of the anova and the KruskalWallis test by means of the power when violating the assumption about normally distributed populations. The permutation method is used as a simulation method to determine the power of the test. It appears that in the case of asymmetric populations the non-parametric Kruskal-Wallis test performs better than the parametric equivalent anova method.

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تاریخ انتشار 2010